I’ve just reconciled my bank statement from December against my receipts, and found a mismatch from a meal at a chain restaurant.
I suspected at first that a dishonest server had raised the tip amount, hoping I’d never consult my statement. Not so. On closer inspection, I discovered they’d just eliminated the tip entirely, billing only the cost of the meal.
Sealing up my amusement was the realization that my tip was only 10% in the first place. I always tip well, so this suggests the service (which I do not remember at all, apparently) was so terrible it deserved special penalty. It’s appropriate that the server was then so incompetent as to incorrectly process the check, and thereby forfeit the entire amount.